Do peanuts ever go bad?
Is estropear the "go bad" word here? How else to say go bad, spoil?
I seriously have no idea how to even begin to ask this.
¿Estropea cacuhuates alguna vez?
I think I don't know the word for ever here either. Literal translations? Heck I don't even know about the sentiment behind this.
Also, do peanuts go bad seriously? I've had these exposed to air for like 3 months but they are all I have to eat. So I will eat them. I'm poor.
9 Answers
¿Estropea cacuhuates alguna vez?
Who makes them bad? You forgot to mention it, hehe. Now, if you mean that they simply get bad ("by themselves"), then you need a reflexive pronoun: "Se estropean". Bear in mind that "Estropea" means "He/she/it spoils", making you wonder who is spoiling things.
Las bacterias estropean los cacahuetes.
Las humedad estropea los cacahuetes.
Los cacahuetes se estropean. ("se" means there is no bacteria nor humidity to blame for)
I would imagine that eating a few rancid peanuts probably would not make you feel too much worse for wear; although, eating a large enough quantity might make you feel a little sick to your stomach.
That being said, I certainly wouldn't advise making a regular habit out of it. When peanuts "go bad" or become moldy, the microorganisms (fungi in this case) which have been busy dining on your once tasty snack have also been busy releasing a class of toxins known as mycotoxins, some of which are really quite nasty. One such group of these toxins, aflatoxins, have been very well studied and are known to be a major health concern, especially in third world countries where packing and storing standards are not well regulated. Aflatoxins are particularly insidious in that they can cause mutations in DNA and, consequently, long term exposure has been linked to liver cancer (the organ responsible for clearing toxins from your body).
I'm not going to answer in Spanish. In the interest of science, and your health:
Yes, they can spoil. I have had rancid nuts right from the store that were inedible. That includes the ones packed in sealed jars or cans. But worst, my mother had some walnuts she kept in a bowl. They looked fine but they must have been there a long time because when we cracked them open just dust was inside.
Then there are the packaged nuts they sell for baking. Half the time these are turning rancid if not already rancid.
You've got to find a store where the turnover is high and there is less chance of them keeping old stock on the shelves and selling it.
Nuts can definitely spoil. Try to get them as fresh as you can.
Read more: http://wiki.answers.com/Q/Do_nuts_spoil#ixzz1K1UHTzaB
Peanuts (all nuts really) are high in fat (oil) so are thus subject to going bad, like everything else.
Mmm, hard to understand, estropear cacahuates = to screw/damage peanuts, so estropear = screw, although is hard to think how a peanut can be "damaged", as this any clear to you?.
Edit
Are you asking me how to say that?, why the comma after "how would you", I would say:
Do peanuts ever go bad?. ¿Los cacahuates (alguna vez) se echan a perder?.
Are these peanuts bad?. ¿Estos cacahuates están echados a perder?
Is it OK to eat these or are they bad?. ¿Está bien comerse estos o están echados a perder?
Have they gone bad? Are they poison now?. ¿Ya se echaron a perder?, ¿Están intoxicados?.
That's how I would say it.
Also, some people could say "¿están malos?" instead of "echados a perder" but the first one is more common. 
I have learned a lot more about nuts by reading these answers than I ever knew before.
In any event, for whatever is worth: nuts in general are a great food (for those who are not allergic, of course). However they have a lot of natural fats. Good fats. That's part of what makes them nutritious and good providers of energy. But fats have that unfortunate tendency of going rancid, specially the good, unprocessed fats. So yeah, have nuts, as unprocessed and with as few additives as possible (none of that caramel coated stuff!), but look at the expiration date on the the pack, and eat them promptly.
Raw peanuts stored in the shell sometimes develop a mold that makes them taste bad and can make people sick. Please note that I am not saying always or often, but it happens.
You might want a veces.
Forever?, para siempre?
Here's a link to a Spanish thesaurus.
Be careful of a toxic mold called "aflatoxin" that can grow on rancid peanut butter or spoiled peanuts. Peanut butter manufacturers are highly aware of this potentially toxic mold and take strict manufacturing precautions to eliminate it. Commercially-available peanut butters are safe. If you grind your own nuts into peanut butter, take care to use roasted nuts that are fresh.
Toxic mold: molde tóxico
We need more input. Are these packaged peanuts or raw peanuts out of the ground? I used to sell hot boiled peanuts at the local flea market and I bought the jumbo raw peanuts in a 50 pound bag they had been dried. I usually used them up pretty fast and never had a problem. They were available all year. One time a friend of mine gave me two bushels of raw peanuts out of the ground. The first bushel was okay, but the next week I tried the second bushel and they were moldy and unfit to eat.
I'd say, if they taste okay, then go ahead and eat them, otherwise, don't,
